Table 2: Separation and position angle of the XZ Tau binary. Errors in separation angles are estimated to be $\pm 0.005$.
Date of Separation Position angle
observation (arcsec) (degrees)

1995 Jan. 5

0.302 $146.35 \pm 0.38$
1998 Mar. 25 0.299 $145.50 \pm 0.25$
1999 Feb. 3 0.303 $144.85 \pm 0.26$
2000 Feb. 6 0.300 $143.30 \pm 0.25$
2001 Feb. 10 0.298 $142.38 \pm 0.24$


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